This Flex-a-lite direct-fit dual electric-fan
system is specifically for 2003-2007 Ford Super Duty trucks
with the 6.0L diesel engine. Recover horsepower and boost your
fuel economy by replacing your stock clutch fan assembly with
this dual electric fan system. It features two 15-inch S-Blade
electric fans. Comes with or without the Flex-a-lite Variable
Speed Controller that varies the fan speed from 60-100 percent,
depending on radiator temperature. These powerful fans can move
up to 6,800 cfm of airflow! Made in the USA!